Polymer/silica hybrid waveguide Y-branch power splitter with loss compensation based on NaYF4:Er3+, Yb3+ nanocrystals

Polymer/silica hybrid waveguide Y-branch power splitter with loss compensation based on NaYF₄:Er³⁺, Yb³⁺ nanocrystals

Fu Yue-Wu¹, Sun Tong-He¹, Zhang Mei-Ling², Zhang Xu-Cheng¹, Wang Fei^{1, †}, Zhang Da-Ming¹

Relative gain at 1530-nm wavelength versus pump power for different signal powers of (a) branch A and (b) branch B. Relative gain versus pump power for signal power of 0.05 mW at different signal wavelengths of (c) branch A and (d) branch B.